.page-about {
  background-color: var(--color-ink);
  color: var(--color-cream);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  min-height: 76vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.page-about .about-hero-frame {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .about-hero-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 12, 16, 0.15) 0%, rgba(11, 12, 16, 0.45) 50%, var(--color-ink) 100%);
}

.page-about .about-hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: var(--space-5) var(--space-2) var(--space-4);
}

.page-about .about-hero .breadcrumb {
  margin-bottom: var(--space-3);
  padding-left: var(--space-2);
  border-left: 2px solid var(--color-gold);
}

.page-about .about-hero .breadcrumb-item a {
  color: var(--color-ice);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-hero .breadcrumb-item a:hover {
  color: var(--color-gold);
}

.page-about .about-hero .page-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  color: var(--color-cream);
}

.page-about .about-hero .page-subtitle {
  max-width: 38em;
  color: rgba(245, 240, 233, 0.85);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: var(--space-4);
}

.page-about .about-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.page-about .about-stat {
  padding: var(--space-2);
  background: rgba(11, 12, 16, 0.6);
  border: 1px solid rgba(201, 162, 39, 0.4);
  transform: skewX(-6deg);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-gold);
  transform: skewX(6deg);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8rem;
  color: var(--color-ice);
  transform: skewX(6deg);
}

.page-about .about-toc {
  position: sticky;
  top: var(--nav-offset);
  z-index: 30;
  display: flex;
  gap: var(--space-1);
  padding: 0 var(--space-2);
  overflow-x: auto;
  scrollbar-width: none;
  background: rgba(11, 12, 16, 0.92);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(201, 162, 39, 0.3);
  border-bottom: 1px solid rgba(201, 162, 39, 0.5);
}

.page-about .about-toc::-webkit-scrollbar {
  display: none;
}

.page-about .about-toc .toc-link {
  flex: 0 0 auto;
  padding: 0.8rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-stone);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-toc .toc-link:hover,
.page-about .about-toc .toc-link.is-active {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.page-about .about-origin,
.page-about .about-milestones,
.page-about .about-team,
.page-about .about-commit {
  position: relative;
  isolation: isolate;
}

.page-about .about-section-num {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  z-index: -1;
  font-family: var(--font-heading);
  font-size: 4.8rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(201, 162, 39, 0.12);
  transform: skewX(-8deg);
  pointer-events: none;
}

.page-about .about-origin {
  padding-top: var(--space-5);
  background: linear-gradient(180deg, var(--color-ink) 0%, rgba(143, 184, 216, 0.04) 100%);
}

.page-about .about-origin-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-about .about-origin-text p {
  margin-bottom: var(--space-2);
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(245, 240, 233, 0.82);
}

.page-about .about-origin-aside {
  display: grid;
  gap: var(--space-2);
  align-content: start;
}

.page-about .about-origin-card {
  padding: var(--space-3);
  background: linear-gradient(105deg, rgba(201, 162, 39, 0.1), transparent 80%);
  border-left: 3px solid var(--color-gold);
}

.page-about .about-origin-card p {
  margin-top: 0.6rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(245, 240, 233, 0.85);
}

.page-about .about-milestones {
  padding-top: var(--space-5);
  padding-bottom: var(--space-4);
  background: rgba(143, 184, 216, 0.05);
  border-top: 1px solid rgba(143, 184, 216, 0.08);
  border-bottom: 1px solid rgba(143, 184, 216, 0.08);
}

.page-about .about-section-lead {
  margin-top: var(--space-1);
  color: rgba(245, 240, 233, 0.7);
  line-height: 1.7;
}

.page-about .about-timeline {
  position: relative;
  margin-top: var(--space-4);
  padding-left: var(--space-4);
}

.page-about .about-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 2px;
  width: 3px;
  background: linear-gradient(180deg, var(--color-gold), rgba(143, 184, 216, 0.5));
  transform: skewX(-6deg);
}

.page-about .about-milestone-item {
  position: relative;
  margin-bottom: var(--space-4);
  padding: var(--space-2) 0 var(--space-2) var(--space-3);
}

.page-about .about-milestone-marker {
  position: absolute;
  top: var(--space-2);
  left: calc(-1 * var(--space-4) + 2px);
}

.page-about .about-milestone-marker span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-ink);
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  transform: translateX(-50%) skewX(-4deg);
}

.page-about .about-milestone-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-cream);
}

.page-about .about-milestone-content p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(245, 240, 233, 0.72);
}

.page-about .about-milestone-item.is-current .about-milestone-content h3 {
  color: var(--color-gold);
}

.page-about .about-milestone-item.is-current::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(115deg, rgba(166, 25, 46, 0.1), transparent 70%);
  transform: skewX(-6deg);
  pointer-events: none;
}

.page-about .about-milestone-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.page-about .about-milestone-links .btn {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
}

.page-about .about-timeline-figure {
  margin: var(--space-4) auto 0;
  padding: 0 var(--space-2);
}

.page-about .about-timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(201, 162, 39, 0.3);
}

.page-about .about-timeline-figure figcaption {
  margin-top: var(--space-1);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(245, 240, 233, 0.6);
}

.page-about .about-team {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
  background: linear-gradient(180deg, var(--color-ink) 0%, rgba(166, 25, 46, 0.05) 50%, var(--color-ink) 100%);
}

.page-about .about-team-lead {
  margin-top: var(--space-1);
  font-size: 1rem;
  color: rgba(245, 240, 233, 0.75);
}

.page-about .about-team-grid {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-about .about-team-item {
  position: relative;
  padding: var(--space-3);
  background: rgba(245, 240, 233, 0.03);
  border: 1px solid rgba(143, 184, 216, 0.1);
  border-left: 3px solid rgba(201, 162, 39, 0.8);
  transition: background 0.3s ease, border-left-color 0.3s ease;
}

.page-about .about-team-item:hover {
  background: rgba(201, 162, 39, 0.06);
  border-left-color: var(--color-gold);
}

.page-about .about-team-icon {
  display: block;
  margin-bottom: var(--space-1);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--color-gold);
}

.page-about .about-team-item h3 {
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-cream);
}

.page-about .about-team-item p {
  font-size: 0.85rem;
  line-height: 1.75;
  color: rgba(245, 240, 233, 0.72);
}

.page-about .about-team-flow {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.page-about .about-team-flow img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(201, 162, 39, 0.25);
}

.page-about .about-team-flow-text h3 {
  margin-bottom: var(--space-2);
  font-size: 1.1rem;
  color: var(--color-cream);
}

.page-about .about-team-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-team-steps li {
  display: flex;
  gap: var(--space-2);
  padding: 0.7rem 0;
  border-bottom: 1px dashed rgba(143, 184, 216, 0.15);
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(245, 240, 233, 0.78);
}

.page-about .about-team-steps li:last-child {
  border-bottom: none;
}

.page-about .about-team-steps li span {
  white-space: nowrap;
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--color-red);
}

.page-about .about-commit {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
  background: linear-gradient(180deg, var(--color-ink) 0%, rgba(201, 162, 39, 0.07) 50%, var(--color-ink) 100%);
}

.page-about .about-commit-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-about .about-commit-item {
  padding: var(--space-4) var(--space-3);
  background: rgba(11, 12, 16, 0.7);
  border: 1px solid rgba(143, 184, 216, 0.14);
  border-top: 3px solid var(--color-gold);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about .about-commit-item:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 162, 39, 0.5);
}

.page-about .about-commit-index {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--color-red);
}

.page-about .about-commit-item h3 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
  color: var(--color-gold);
}

.page-about .about-commit-item p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(245, 240, 233, 0.78);
}

.page-about .about-commit-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-2);
  border-top: 1px solid rgba(201, 162, 39, 0.3);
}

.page-about .about-commit-action p {
  margin-bottom: var(--space-1);
  text-align: center;
  font-size: 1rem;
  color: rgba(245, 240, 233, 0.85);
}

.page-about .about-commit-action .btn {
  min-width: 160px;
  text-align: center;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    min-height: 88vh;
  }

  .page-about .about-hero-content {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .page-about .about-hero .page-title {
    font-size: 3rem;
  }

  .page-about .about-hero .page-subtitle {
    font-size: 1.05rem;
  }

  .page-about .about-hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-origin-grid {
    grid-template-columns: 1.8fr 1fr;
    gap: var(--space-5);
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-team-flow {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-about .about-commit-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-commit-action {
    flex-direction: row;
    justify-content: center;
  }

  .page-about .about-commit-action p {
    margin-bottom: 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-section-num {
    right: var(--space-4);
    font-size: 7rem;
  }

  .page-about .about-origin {
    background: linear-gradient(100deg, rgba(143, 184, 216, 0.05) 0%, transparent 55%);
  }

  .page-about .about-timeline {
    padding-left: 0;
  }

  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-50%) skewX(-6deg);
  }

  .page-about .about-milestone-item {
    width: 50%;
    margin-left: 0;
    padding: var(--space-2) 0;
    padding-right: var(--space-5);
    text-align: right;
  }

  .page-about .about-milestone-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: var(--space-5);
    text-align: left;
  }

  .page-about .about-milestone-marker {
    top: var(--space-3);
    left: auto;
    right: 0;
  }

  .page-about .about-milestone-item:nth-child(even) .about-milestone-marker {
    right: auto;
    left: 0;
  }

  .page-about .about-milestone-marker span {
    transform: translateX(50%) skewX(-4deg);
  }

  .page-about .about-milestone-item:nth-child(even) .about-milestone-marker span {
    transform: translateX(-50%) skewX(-4deg);
  }

  .page-about .about-milestone-links {
    justify-content: flex-end;
  }

  .page-about .about-milestone-item:nth-child(even) .about-milestone-links {
    justify-content: flex-start;
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-commit-item p {
    font-size: 0.92rem;
  }
}